A monoatomic gas is supplied heat Q very slowly keeping the pressure constant. The work done by the gas is

\frac{2}{5} Q

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\frac{3}{5} Q

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\frac{Q}{5}

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\frac{2}{3} Q

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Solution

The correct option is B $\frac{2}{5} Q$
$\frac{△ U}{Q} = \frac{3}{5}, o r △ U = \frac{3}{5} Q$
From the first law of thermodynamics
$Q = △ U + W$
$W = \frac{2}{5} Q$

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Similar questions

A mono atomic gas is supplied the heat Q very slowly keeping the pressure constant. The work done by the gas will be

4 \times 10^{5} {N m}^{- 2} t o 8 \times 10^{- 5} {N m}^{- 2}

{0.2 m}^{3}

{0.5 m}^{3}

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